US5326024A - Carton with reclosable pouring opening - Google Patents

Carton with reclosable pouring opening Download PDF

Info

Publication number
US5326024A
US5326024A US08/128,980 US12898093A US5326024A US 5326024 A US5326024 A US 5326024A US 12898093 A US12898093 A US 12898093A US 5326024 A US5326024 A US 5326024A
Authority
US
United States
Prior art keywords
end panel
panel sections
carton
sections
panel section
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US08/128,980
Other languages
English (en)
Inventor
James C. Fogle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Graphic Packaging International LLC
Original Assignee
Riverwood International Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Riverwood International Corp filed Critical Riverwood International Corp
Priority to US08/128,980 priority Critical patent/US5326024A/en
Assigned to RIVERWOOD INTERNATIONAL CORPORATION reassignment RIVERWOOD INTERNATIONAL CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FOGLE, JAMES C.
Priority to TW082109853A priority patent/TW226007B/zh
Application granted granted Critical
Publication of US5326024A publication Critical patent/US5326024A/en
Priority to EP94927158A priority patent/EP0670802A4/fr
Priority to BR9405503-3A priority patent/BR9405503A/pt
Priority to KR1019950701897A priority patent/KR950704154A/ko
Priority to NZ273424A priority patent/NZ273424A/en
Priority to CA002150118A priority patent/CA2150118A1/fr
Priority to AU76694/94A priority patent/AU680943B2/en
Priority to JP7510288A priority patent/JPH08503912A/ja
Priority to PCT/US1994/009076 priority patent/WO1995009107A1/fr
Priority to ZA947610A priority patent/ZA947610B/xx
Priority to CO94044173A priority patent/CO4370758A1/es
Priority to FI951949A priority patent/FI951949A0/fi
Priority to NO952084A priority patent/NO952084L/no
Assigned to RIVERWOOD INTERNATIONAL USA, INC. reassignment RIVERWOOD INTERNATIONAL USA, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: RIVERWOOD INTERNATIONAL CORPORATION
Assigned to CHEMICAL BANK, AS ADMINISTRATIVE AGENT reassignment CHEMICAL BANK, AS ADMINISTRATIVE AGENT SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: RIVERWOOD INTERNATIONAL USA, INC.
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B3/00—Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/70—Break-in flaps, or members adapted to be torn-off, to provide pouring openings
    • B65D5/701—Tearable flaps defined by score-lines or incisions provided in the closure flaps of a tubular container made of a single blank

Definitions

  • This invention relates to cartons for packaging pourable material. More particularly, it relates to cartons of this type which contain closable pouring openings.
  • Particles or flakes of dry material, such as cereal are conventionally packaged in rectangular boxes having a top panel which can be opened to gain access to the contents.
  • the top panel includes overlapping flaps connected to the side panels and underlying glue flaps connected to the end panels.
  • the package is opened by separating the outer top panel flap from the inner top panel flap, and is closed by inserting an end tab on the outer flap into a locking slot in the inner flap.
  • the slot is initially hidden from view by the overlapping flap and is exposed upon separating the two flaps.
  • a common complaint against this package design is the difficulty in separating the flaps.
  • the glue adhering the overlapping flaps to each other and to the underlying short glue flaps is often so strong or so liberally applied that the outer flap tears instead of separating along the glue line. If the tab is completely torn off, the top panel flaps cannot be connected together to close the package. Even if the tab is only partially torn or the outer flap is weakened by tearing in other areas, the flaps cannot normally be securely
  • the carton of the invention overcomes the above-mentioned problems. Its basic construction is conventional, comprising side panels, end panels and a bottom panel connected to each other. Also included are upper sloped panel sections connected to the side panels along fold lines and upper end panel sections connected to the end panels along fold lines, with the upper end panel sections being connected to the upper sloped panel sections by gusset panels.
  • the inwardly folded gusset panels exert a biasing force which tends to hold the upper end panel sections in closed condition.
  • additional means are provided for holding the upper sloped panel sections and upper end panel sections in closed condition and for permitting the carton to be opened and reclosed.
  • the additional means for holding the upper sloped panel sections and upper end panel sections in closed condition may comprise a flap attached to one of the upper sloped panel sections and connected to the other upper sloped panel section.
  • a second flap is attached to the other upper sloped panel section, and the flaps are overlapped and adhered to each other so that they are substantially horizontal when the carton is resting on the bottom panel.
  • the means for permitting the carton to be opened at an upper end may comprise a tear strip connected to the upper sloped panel sections, preferably forming an end portion of the overlapped flaps.
  • a tear strip connected to the upper sloped panel sections, preferably forming an end portion of the overlapped flaps.
  • the carton can be readily opened without destroying or damaging its pouring and reclosing features and can be economically formed from a blank of generally rectangular shape.
  • FIG. 1 is a pictorial view of the carton of the invention
  • FIG. 2 is a partial end view of the carton, showing the end portion of the carton designed to be opened;
  • FIG. 3 is a plan view of a blank for forming the carton of FIG. 1;
  • FIG. 4 is a partial pictorial view of the carton of FIG. 1, showing the top in open condition prior to filling the carton;
  • FIG. 5 is a partial pictorial view of the carton at an initial stage of opening
  • FIG. 6 is a partial pictorial view of the carton after it has been opened.
  • FIG. 7 is a partial end view of the carton, showing the end portion after it has been reclosed.
  • the carton 10 is comprised of side panels 12 connected to end panels 14 and to a bottom panel, not visible in this view.
  • the top portion 16 of the carton includes a relatively narrow flat top panel section 18 connected along fold lines 20 to upper sloped sections 22, which in turn are connected along fold lines 24 to the side panels 12.
  • Upper end panel sections 26 are connected to the end panels 14 along fold lines 28 and to the sloped sections 22 by means of gusset panels 30.
  • the top flat section 18 includes a tear-away tab 32 which is connected to the top flat section 18 along fold line 34 and is adapted to engage in locking slit 36 in the upper end panel section 26 after the package has been opened, as explained more fully below.
  • the carton is formed from the blank 38 of FIG. 3, which can be seen to be generally rectangular in shape.
  • Side panel sections 12 are connected to the end panel sections 14 by fold lines 40, with the side panel section at one end of the blank also being connected along fold line 42 to glue flap 44.
  • Bottom glue flaps 46 are connected to the end panel sections 14 along fold lines 48 and bottom panel flaps 50 are connected to the side panel sections 12 along fold lines 52.
  • the gusset panels 30 are connected to the upper end panel sections 26 along angled fold lines 54 and to the upper sloped sections 22 along fold lines 56, which are extensions of the fold lines 40.
  • a gusset glue flap 58 is connected to the end sloped section 22 along fold line 60.
  • the gusset glue flap is separated from the main glue flap 44 by a lower edge 62 which forms substantially the same angle with the fold line 60 as the fold lines 54 make with the fold lines 56.
  • Each sloped section 22 is connected to a similar top panel flap 18 which forms the top flat section of the carton, and the tabs 32 comprise the interior ends of the flaps.
  • the tabs 32 are connected to the sloped sections 22 along weakened lines, such as the so-called zipper cuts 64, to enable the tabs to be readily separated from the sloped sections.
  • flaps 68 Connected to the upper end panel sections 26 along fold lines 66 are flaps 68, the width of which is approximately the same as the width of the top panel flaps 18.
  • the flap 68 associated with the end panel section in which the locking slit 36 is incorporated may be provided with a weakened line, such as the partially slit line 70, spaced from and parallel to the fold line 66.
  • the blank is folded along the outermost fold lines 40 and the left edge of the blank, as viewed in FIG. 3, is glued to the glue flaps 44 and 58 in the areas shown in stipple.
  • the glue flap 58 overlies the end gusset panel 30, with the lower edge 62 of the gusset glue flap 58 substantially coinciding with the outer gusset panel fold line 54.
  • This creates a collapsed carton sleeve which is the form in which the cartons are introduced to a packaging machine. In the packaging machine the collapsed sleeve is opened to form a sleeve, after which the bottom glue flaps 46 are folded in and the bottom panel flaps 50 folded in on top of them.
  • One of the bottom panel flaps 50 is folded in first to become the inner bottom panel flap and the other flap 50 is folded to overlie the other.
  • the inner bottom flap 50 is glued to the glue flaps and the outer bottom flap 50 is glued to the underlying bottom flap during this operation.
  • FIG. 4 shows the sloped panels 22 and top panel flaps 18 extending vertically up as a continuation of side panels 12 and the upper end panel sections 26, the gusset panels 30 and the tabs 68 extending up as a continuation of end panels 14.
  • the carton is filled with the flaps in this condition, or with the flaps 18 and tabs 68 folded back at an angle to the vertical in order to provide additional clearance for the filling operation. After the filling operation, it is merely necessary to exert an inward force on the upper end panel sections 26 to bring the sloped panel sections 22 to their inwardly angled position.
  • the tabs 32 are grasped and lifted, causing them to separate along the tear lines 64 and to be pivoted up about the fold lines 34. Both of the adhered tabs are separated and pivoted up as a unit to the point illustrated in FIG. 5, which provides access to the fold line 66 at the upper edge of the upper end panel section 26. To complete the opening process, it is merely necessary to reach in to the upper edge and pull the upper end panel section 26 out.
  • the upper end panel section pivots out about its fold line 28, and at the same time the gusset panels fold out to form the configuration illustrated in FIG. 6.
  • the outwardly folded gusset panels form a spout-like opening through which the contents of the carton can readily and freely flow.
  • the outwardly folded tab 68 preferably is formed with the partially severed line 70 described above so that the pressure exerted on the tab by the user in opening the carton will sever the tab along this line, resulting in a very short remaining tab which forms the outer edge of the spout and over which the contents of the carton can flow.
  • the design of the invention allows the carton to be opened without having to overcome excessive or unwanted applications of glue and provides a convenient pouring spout opening configuration.
  • the carton is easily closed, and is maintained in closed condition by the biasing force of the gusset panels and by the tab and slot arrangement at the end of the top panel section.
  • the carton is basically rectilinear in shape, which permits the cartons to be stacked.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
  • Packaging Frangible Articles (AREA)
US08/128,980 1993-09-29 1993-09-29 Carton with reclosable pouring opening Expired - Fee Related US5326024A (en)

Priority Applications (14)

Application Number Priority Date Filing Date Title
US08/128,980 US5326024A (en) 1993-09-29 1993-09-29 Carton with reclosable pouring opening
TW082109853A TW226007B (en) 1993-09-29 1993-11-23 Carton with reclosable pouring opening
JP7510288A JPH08503912A (ja) 1993-09-29 1994-08-11 再封鎖可能な流出開口を備えた紙箱
BR9405503-3A BR9405503A (pt) 1993-09-29 1994-08-11 Caixa de papelão com abertura de escoamento periodicamente fechável,
CA002150118A CA2150118A1 (fr) 1993-09-29 1994-08-11 Contenant en carton muni d'une ouverture verseuse refermable
PCT/US1994/009076 WO1995009107A1 (fr) 1993-09-29 1994-08-11 Recipient en carton dote d'une ouverture verseuse pouvant etre refermee
KR1019950701897A KR950704154A (ko) 1993-09-29 1994-08-11 재밀봉가능한 유출구를 가지는 카톤(carton with reclosable pouring opening)
NZ273424A NZ273424A (en) 1993-09-29 1994-08-11 Carton has reclosable pouring opening; pouring spout, formed by upper end and side panel sections, pivots downward about a fold line
EP94927158A EP0670802A4 (fr) 1993-09-29 1994-08-11 Recipient en carton dote d'une ouverture verseuse pouvant etre refermee.
AU76694/94A AU680943B2 (en) 1993-09-29 1994-08-11 Carton with reclosable pouring opening
ZA947610A ZA947610B (en) 1993-09-29 1994-09-20 Carton with reclosable pouring opening
CO94044173A CO4370758A1 (es) 1993-09-29 1994-09-28 Caja de carton, provista de una abertura de vertido que pue- de ser cerrada de nuevo y pre-forma para formar dicha caja
FI951949A FI951949A0 (fi) 1993-09-29 1995-04-25 Kartonkipakkaus uudelleensuljettavine kaatoaukkoineen
NO952084A NO952084L (no) 1993-09-29 1995-05-26 Kartong med gjentatt lukkbar helleåpning

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/128,980 US5326024A (en) 1993-09-29 1993-09-29 Carton with reclosable pouring opening

Publications (1)

Publication Number Publication Date
US5326024A true US5326024A (en) 1994-07-05

Family

ID=22437912

Family Applications (1)

Application Number Title Priority Date Filing Date
US08/128,980 Expired - Fee Related US5326024A (en) 1993-09-29 1993-09-29 Carton with reclosable pouring opening

Country Status (14)

Country Link
US (1) US5326024A (fr)
EP (1) EP0670802A4 (fr)
JP (1) JPH08503912A (fr)
KR (1) KR950704154A (fr)
AU (1) AU680943B2 (fr)
BR (1) BR9405503A (fr)
CA (1) CA2150118A1 (fr)
CO (1) CO4370758A1 (fr)
FI (1) FI951949A0 (fr)
NO (1) NO952084L (fr)
NZ (1) NZ273424A (fr)
TW (1) TW226007B (fr)
WO (1) WO1995009107A1 (fr)
ZA (1) ZA947610B (fr)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5605279A (en) * 1995-11-06 1997-02-25 Flour City Packaging Corporation Carton for carry-out type food
GB2310199A (en) * 1996-02-19 1997-08-20 Europa Carton Faltschachtel Carton with closure means
US5678755A (en) * 1996-07-31 1997-10-21 James River Paper Company, Inc. Paperboard carton having a pour spout and blank for forming the same
US6050484A (en) * 1999-07-21 2000-04-18 Fres-Co System Usa, Inc. Convertible-reclosable box/carton with pour spout
JP3086046B2 (ja) 1992-01-30 2000-09-11 オトール シート材料の箱、ブランク、箱を製造する機械
US6273329B1 (en) * 1999-08-12 2001-08-14 International Paper Company Closure for hand filled bakery packages utilizing cohesive material
US20040232214A1 (en) * 2003-05-23 2004-11-25 Aaron Bates Dispensing feature with built-in ad panel
US20050061864A1 (en) * 2001-08-03 2005-03-24 Lee Jung Min Tetrahedron/pentahedron container
US20080023534A1 (en) * 2006-07-28 2008-01-31 Brpp, Llc Gable top container with perforated opening arrangement
US20120138667A1 (en) * 2010-12-03 2012-06-07 Burke Bradley J Carton with dispenser
US9038884B2 (en) 2012-11-14 2015-05-26 Rock-Tenn Shared Services, Llc Carton with opening and reclosing feature
USD732383S1 (en) * 2014-03-06 2015-06-23 Medtronic Vascular, Inc. Package for a medical device
WO2017136514A1 (fr) * 2016-02-05 2017-08-10 Graphic Packaging Internation, Inc. Carton à couvercle refermable
USD804301S1 (en) * 2015-12-28 2017-12-05 Yazaki Corporation Package box
WO2018132359A1 (fr) * 2017-01-13 2018-07-19 Graphic Packaging International, Llc Carton avec fermeture supérieure
US10173805B2 (en) 2016-07-14 2019-01-08 Graphic Packaging International, Llc Reclosable carton
USD858272S1 (en) * 2017-10-30 2019-09-03 Sfc Global Supply Chain, Inc. Food package
WO2023192260A1 (fr) * 2022-03-29 2023-10-05 Graphic Packaging International, Llc Carton pourvu d'éléments d'ouverture

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1157462A (en) * 1914-12-15 1915-10-19 J R Van Wormer And Co Folded-blank box.
US2333123A (en) * 1939-12-29 1943-11-02 Nat Folding Box Co Gable top carton
US2470199A (en) * 1945-09-07 1949-05-17 Vivian George Stewart Carton and secondary closure therefor
US2750095A (en) * 1953-01-13 1956-06-12 Ex Cell O Corp Dispensing container with extensible pouring spout
US3022930A (en) * 1959-11-16 1962-02-27 American Can Co Container
CA679492A (en) * 1964-02-04 W. Kuchenbecker Morris Container
US3306514A (en) * 1965-04-13 1967-02-28 Procter & Gamble Dispensing carton
US3770185A (en) * 1971-02-26 1973-11-06 Foremost Mckesson Beverage container with straw hole
US4813546A (en) * 1988-06-15 1989-03-21 International Paper Company Opening arrangement for gable top container

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA679492A (en) * 1964-02-04 W. Kuchenbecker Morris Container
US1157462A (en) * 1914-12-15 1915-10-19 J R Van Wormer And Co Folded-blank box.
US2333123A (en) * 1939-12-29 1943-11-02 Nat Folding Box Co Gable top carton
US2470199A (en) * 1945-09-07 1949-05-17 Vivian George Stewart Carton and secondary closure therefor
US2750095A (en) * 1953-01-13 1956-06-12 Ex Cell O Corp Dispensing container with extensible pouring spout
US3022930A (en) * 1959-11-16 1962-02-27 American Can Co Container
US3040950A (en) * 1959-11-16 1962-06-26 American Can Co Dispensing guide
US3040951A (en) * 1959-11-16 1962-06-26 American Can Co Container
US3306514A (en) * 1965-04-13 1967-02-28 Procter & Gamble Dispensing carton
US3770185A (en) * 1971-02-26 1973-11-06 Foremost Mckesson Beverage container with straw hole
US4813546A (en) * 1988-06-15 1989-03-21 International Paper Company Opening arrangement for gable top container

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3086046B2 (ja) 1992-01-30 2000-09-11 オトール シート材料の箱、ブランク、箱を製造する機械
US5605279A (en) * 1995-11-06 1997-02-25 Flour City Packaging Corporation Carton for carry-out type food
GB2310199A (en) * 1996-02-19 1997-08-20 Europa Carton Faltschachtel Carton with closure means
US5678755A (en) * 1996-07-31 1997-10-21 James River Paper Company, Inc. Paperboard carton having a pour spout and blank for forming the same
US6050484A (en) * 1999-07-21 2000-04-18 Fres-Co System Usa, Inc. Convertible-reclosable box/carton with pour spout
US6273329B1 (en) * 1999-08-12 2001-08-14 International Paper Company Closure for hand filled bakery packages utilizing cohesive material
US20050061864A1 (en) * 2001-08-03 2005-03-24 Lee Jung Min Tetrahedron/pentahedron container
US7036713B2 (en) * 2001-08-03 2006-05-02 Jung Min Lee Tetrahedron/pentahedron container
US20040232214A1 (en) * 2003-05-23 2004-11-25 Aaron Bates Dispensing feature with built-in ad panel
US6959857B2 (en) * 2003-05-23 2005-11-01 Meadwestvaco Packaging Systems, Llc Dispensing feature with built-in ad panel
US7628314B2 (en) * 2006-07-28 2009-12-08 Brpp, Llc Gable top container with perforated opening arrangement
US20080023534A1 (en) * 2006-07-28 2008-01-31 Brpp, Llc Gable top container with perforated opening arrangement
WO2008013742A3 (fr) * 2006-07-28 2008-04-24 Brpp Llc Conteneur à fermeture pignon avec arrangement d'ouverture perforé
US20120138667A1 (en) * 2010-12-03 2012-06-07 Burke Bradley J Carton with dispenser
US9038884B2 (en) 2012-11-14 2015-05-26 Rock-Tenn Shared Services, Llc Carton with opening and reclosing feature
USD732383S1 (en) * 2014-03-06 2015-06-23 Medtronic Vascular, Inc. Package for a medical device
USD804301S1 (en) * 2015-12-28 2017-12-05 Yazaki Corporation Package box
US10472120B2 (en) 2016-02-05 2019-11-12 Graphic Packaging International, Llc Carton with reclosable top
WO2017136514A1 (fr) * 2016-02-05 2017-08-10 Graphic Packaging Internation, Inc. Carton à couvercle refermable
US10173805B2 (en) 2016-07-14 2019-01-08 Graphic Packaging International, Llc Reclosable carton
WO2018132359A1 (fr) * 2017-01-13 2018-07-19 Graphic Packaging International, Llc Carton avec fermeture supérieure
US20180201403A1 (en) * 2017-01-13 2018-07-19 Graphic Packaging International, Llc Carton With Top Closure
US10239651B2 (en) 2017-01-13 2019-03-26 Graphic Packaging International, Llc Carton with top closure
EP3568356A4 (fr) * 2017-01-13 2020-08-05 Graphic Packaging International, LLC Carton avec fermeture supérieure
USD858272S1 (en) * 2017-10-30 2019-09-03 Sfc Global Supply Chain, Inc. Food package
USD909200S1 (en) * 2017-10-30 2021-02-02 Sfc Global Supply Chain Inc. Food package
WO2023192260A1 (fr) * 2022-03-29 2023-10-05 Graphic Packaging International, Llc Carton pourvu d'éléments d'ouverture

Also Published As

Publication number Publication date
CA2150118A1 (fr) 1995-03-30
FI951949A (fi) 1995-04-25
NO952084D0 (no) 1995-05-26
EP0670802A1 (fr) 1995-09-13
WO1995009107A1 (fr) 1995-04-06
KR950704154A (ko) 1995-11-17
EP0670802A4 (fr) 1997-01-08
NZ273424A (en) 1997-01-29
NO952084L (no) 1995-05-26
ZA947610B (en) 1995-05-16
BR9405503A (pt) 1999-09-08
TW226007B (en) 1994-07-01
FI951949A0 (fi) 1995-04-25
JPH08503912A (ja) 1996-04-30
AU680943B2 (en) 1997-08-14
AU7669494A (en) 1995-04-18
CO4370758A1 (es) 1996-10-07

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Legal Events

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AS Assignment

Owner name: RIVERWOOD INTERNATIONAL CORPORATION, GEORGIA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FOGLE, JAMES C.;REEL/FRAME:006720/0808

Effective date: 19930929

AS Assignment

Owner name: CHEMICAL BANK, AS ADMINISTRATIVE AGENT, NEW YORK

Free format text: SECURITY INTEREST;ASSIGNOR:RIVERWOOD INTERNATIONAL USA, INC.;REEL/FRAME:007961/0164

Effective date: 19960328

Owner name: RIVERWOOD INTERNATIONAL USA, INC., GEORGIA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:RIVERWOOD INTERNATIONAL CORPORATION;REEL/FRAME:007927/0768

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Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362

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Effective date: 20020705